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permaculture - Re: [permaculture] [SANET-MG] More evidence of microbial workers in the rhyzosphere that can replace energy-intensive chemical slaves (and always could)

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  • From: Lawrence London <lfljvenaura@gmail.com>
  • To: sanet-mg@googlegroups.com, permaculture <permaculture@lists.ibiblio.org>
  • Subject: Re: [permaculture] [SANET-MG] More evidence of microbial workers in the rhyzosphere that can replace energy-intensive chemical slaves (and always could)
  • Date: Mon, 20 Mar 2017 09:26:45 -0400

On Sun, Mar 19, 2017 at 10:56 PM, Lawrence London <lfljvenaura@gmail.com>
wrote:

> Article: 5512 of bionet.plants
> From: niemirab at student.msu.edu
> <http://lists.ibiblio.org/mailman/listinfo/permaculture> (Brendan A.
> Niemira)
> Newsgroups: bionet.plants
> Subject: Re: Mycorhizzae vs. Fertilizer
> Date: Thu, 02 Mar 1995 11:04 est
>
>
> For agronomic crops, you're talking about vesicular arbuscular
> mycorrhizae (VAM), a symbiotic endomycorrhizal fungus. These are
> ubiquitous anyway, and
> not very host-specific, so there is very little need to inoculate the field
> in order
> to introduce them. The big trick is getting them to colonize your crop
> plant to such an extent that fertilizer inputs can be reduced. You can a)
> build up the population in the soil such that even moderately active fungi
> result in
> heavy coloniazation, b) put something in the soil to stimulate the activity
> of smaller populations to get heavy colonization.
>
> Crop rotations have been shown to have a definite impact on the population
> dynamics of VAM,
>
>

> and work is currently being done (by me, among others) to
> determine how the different crop plants differentially select for certain
> species of VAM among all that are availible in the soil.
>
>
In a sanet-mg post, years ago, Dale Wilson mentioned that he knew of a
researcher in Ohio (or nearby state) who took an inventory of
plant-specific VAMs in his region.

> Other workers have shown that certain natural, plant-produced chemicals can
> stimulate the existing VAM to higher levels of activity. These
> chemicals were originally derived from red clover, a popular sequence in
> crop
> rotations. This may shed some light on why rotations are effective
> w/regard to VAM.
>
>



--
Lawrence F. London, Jr.
lfljvenaura@gmail.com
https://sites.google.com/site/avantgeared




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